Yanmar 3HM User Manual download pdf (Page 47)

Important

When installing the impeller, make sure the direction of the impeller cor-

responds to that indicated in the figure.

3-b)

Adjust the V-belt tension. Check the tension of the

cooling water pump drive belt. If there is too much

tension premature damage to the V-belt will occur. On

the other hand of the V-belt pulley is loose it will slip

and cooling water flow will be insufficient. Loosen the

cooling water pump V-belt tension bolt to adjust the

tension.

Replace the belt if it is worn or cracked.

Adjustment Standard – 5 - 7 mm (with 10 kg

thumb force)

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Yanmar 3HM User Manual Page 47